TY  - CONF
TI  - Speech-to-update BIM: a lean, voice-enabled workflow for real-time site progress capture
C1  - Singapore, Singapore
C3  - Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34)
SP  - 204
EP  - 213
PY  - 2026
DO  - 10.24928/2026/0255
AU  - Singhal, Avi
AU  - Garg, Sahil
AD  - Post Graduate Student, Civil and Environmental Engineering Department, Indian Institute of Technology Delhi (IITD), New Delhi, India, singhalavi111@gmail.com, orcid.org/0009-0000-0702-840X
AD  - Assistant Professor, Civil and Environmental Engineering Department, Indian Institute of Technology Delhi (IITD), New Delhi, India, gargsahil@iitd.ac.in, orcid.org/0000-0002-1303-3288
ED  - Hamzeh, Farook
ED  - Poshdar, Mani
ED  - Garcia-Lopez,, Nelly P.
AB  - Progress reporting on construction sites is often separated from digital model updating by several manual handling steps. Information is first noted in the field, later transcribed into reports or spreadsheets, and only afterwards reflected in BIM environments. This sequence introduces delay, repeated data handling, and opportunities for error, all of which conflict with Lean Construction principles that emphasize flow and reduction of non-value-adding activities.
This paper examines a voice-enabled reporting workflow designed to shorten this information pathway. Instead of periodic transcription, site personnel communicate progress through natural speech, allowing updates to be recorded digitally with minimal intermediate handling. The work is presented as a process intervention rather than a technology deployment. A functional prototype is used to illustrate representative use situations, and the workflow is analysed in terms of reporting cycle compression, administrative effort, and relevance to production control practices such as the Last Planner System. The findings suggest that speech-based reporting can reduce reporting effort while helping project teams maintain more up to date visibility of site progress.
KW  - Lean construction
KW  - visual management
KW  - digital twin
KW  - voice user interface (VUI)
KW  - real-time monitoring.
PB  - 
T2  - Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34)
DA  - 2026/06/22
CY  - Singapore, Singapore
L1  - http://iglc.net/Papers/Details/2547/pdf
L2  - http://iglc.net/Papers/Details/2547
N1  - Export Date: 19 June 2026
DB  - IGLC.net
DP  - IGLC
LA  - English
ER  -